CSI-RS Resource Configuration via Segmented State Sets
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Solution Overview
Problem
The existing LTE systems have limited flexibility in aperiodic CSI-RS resource configuration due to the base station's reliance on PQI for dynamic rate matching, which restricts the ability to efficiently manage and optimize CSI-RS resources, especially in scenarios with multiple users.
Innovation Solution
The method involves configuring data resource mapping information with a state set including K data resource mapping parameter states, allowing the activation of M active states and selection of L active states for data resource mapping, enabling more flexible CSI-RS resource configuration without significantly increasing processing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the base station uses PQI for dynamic rate matching, then the implementation is simple, but the flexibility of aperiodic CSI-RS resource configuration is limited
Solution Approach 1:
The patent segments the rate matching configuration into multiple independent state sets (first state set, second state set, etc.), each containing different rate matching parameter combinations. This allows the base station to selectively activate and switch between different state sets, providing flexible configuration capability without requiring a single complex configuration mechanism. The segmentation enables independent optimization of different CSI-RS resource configurations.
Solution Approach 2:
The patent introduces dynamic activation and switching mechanisms where the base station can dynamically activate different state sets and selectively activate different states within state sets based on current communication needs. This dynamic mechanism allows the system to adapt to varying aperiodic CSI-RS resource configuration requirements, transforming a static configuration system into a flexible dynamic one that can respond to different transmission scenarios.
2Productivity
If the number of CSI-RS ports increases to support MIMO transmission, then the transmission capability is improved, but the pilot overhead increases
Solution Approach 1:
The patent enables multiple users to share the same CSI-RS resource by configuring different rate matching parameter sets for different users. The base station can activate different state sets for different users, allowing the same physical CSI-RS ports to serve multiple users with different MIMO configurations. This multi-functionality approach allows the system to support advanced MIMO transmission capabilities while avoiding the need to allocate separate pilot resources for each user.
Solution Approach 2:
The patent changes the rate matching parameters dynamically based on user-specific MIMO configuration requirements. By adjusting the rate matching parameter sets and activation states according to each user's channel conditions and transmission needs, the system can efficiently manage CSI-RS resources for multiple users without increasing pilot overhead. This parameter adaptation allows the same physical resources to serve multiple purposes.
3Adaptability or versatility
If the base station configures multiple rate matching states, then the configuration flexibility is improved, but the signaling overhead increases
Solution Approach 1:
The patent segments the rate matching configuration into multiple state sets, where each state set contains a specific combination of rate matching parameters. This segmentation allows the base station to configure different parameter sets independently and activate only the relevant states for current transmission needs, reducing the amount of signaling required compared to a single comprehensive configuration. The segmented structure enables selective activation of specific states.
Solution Approach 2:
The patent implements a mechanism where the base station configures multiple state sets in advance but only activates and signals the necessary states for current transmission requirements. This partial action approach allows the system to prepare multiple configuration options without signaling all of them simultaneously, reducing signaling overhead while maintaining configuration flexibility when needed.
Data Source
AI summary
Provided in embodiments of the present disclosure are a method and device for configuring data resource mapping information, a base station, a terminal and a system, and a storage medium. The method includes that: a base station configures data resource mapping information for a terminal. The data resource mapping information includes: a state set including K data resource mapping parameter states; information for activating M data resource mapping parameter states among the K data resource mapping parameter states, where the activated data resource mapping parameter states are referred to as active data resource mapping states; and information for selecting L active data resource mapping states from the M active data resource mapping states to perform data resource mapping.